Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04200c3ff92f03866296b1621e937c4e99ab95b52866873a5548a0b67bf4a8c457c77db09688c135f9f54caef47a57280c01aa0af8402aff39a8c5deee6adf1bf3